采场"两带"发育高度经验计算与实测验证
Empirical Calculation and Actual Measurement Verification of the"Two Belts"Development Height in the Stope
王涛 1白云鹏 1李斌2
作者信息
- 1. 神府经济开发区海湾煤矿有限公司,陕西 榆林 719300
- 2. 中煤科工集团重庆研究院有限公司,重庆 400039
- 折叠
摘要
针对海湾煤矿 42211 综采工作面上覆顶板和遗留的其他矿井 3-1 煤采空区可能对该工作面正常生产活动产生影响,需要准确探查该区域采场上覆顶板"两带"发育高度的范围,从而对顶板隐蔽致灾因素进行探查和有效防治.以 42211 工作面为例,通过将经验公式推导得到的"两带"发育高度和井下仰斜钻孔观测装置得到的实测数据进行对比和相互印证,最终取得了较为接近的结果,说明利用井下仰斜钻孔观测的方法,能够得到工作面"两带"发育高度的准确数据,为类似的工作面实测"两带"发育高度提供了可行性研究方法.
Abstract
In view of the overlying roof of the 42211 fully mechanized mining face in Haiwan Coal Mine and the remaining 3-1 coal goaf in other mines,it may affect the normal production activities of this working face,it is necessary to accurately explore the range of the development height of the"two belts"of the stope overlying roof in this area,so as to explore and effectively prevent and govern hidden disaster causing factors of the roof.Taking the 42211 working face as an example,through the comparison and mutual authentication of the measured data obtained from the"two belts"development height derived from the empirical formula and the downhole oblique drilling observation device,a relatively close result is finally obtained.This indicates that the use of the downhole oblique drilling observation method can obtain accurate data on the development height of the"two belts"in the working face,providing a feasibility study method for measuring the development height of the"two belts"in similar working faces.
关键词
采空区/顶板/"两带"发育高度/隐蔽致灾/仰斜钻孔Key words
goaf/roof/''two belts''development height/hidden disaster causing/oblique drilling引用本文复制引用
基金项目
中煤科工集团重庆研究院有限公司自立项目(2023YBXM27)
出版年
2024
国家科技期刊平台
NSTL
万方数据